时间超时raise ReadTimeoutError(self._pool, None, ‘Read timed out.’) pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host=‘files.pythonhosted.org’, port=443): Read timed out.
国内的网连不上的意思，使用镜像pip install matplotlib -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
pip使用国内镜像安装报错ERROR: Cannot unpack file C:\AppData\Local\Temp\pip-unpack-c542clcq\simple (downloaded from C:\AppData\Local\Temp\pip-req-build-tsg7kuii, content-type: text/html; charset=utf-8); cannot detect archive format
考虑可以换镜像
![在这里插入图片描述](https://img-blog.csdnimg.cn/20200529110113228.png?x-oss-process
成功